Alternative Equation Formats

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MathML

W_{j} (x, b) = \frac{1}{\sqrt{n}} \sum_{i = 1}^{n} I (x - b \leq x_{i j} \leq x) e_{i}

W_{j} (x, b) = \frac{1}{\sqrt{n}} \sum_{i = 1}^{n} I (x - b \leq x_{i j} \leq x) e_{i}

\[ W_ j(x,b) = \frac{1}{\sqrt {n}}\sum _{i=1}^ n I(x-b\le x_{ij}\le x)e_ i \]